Felt-cleaner for paper machinery.



No. 804,968. PATENTED NOV. 21,1905. M. MILLER.

FELT CLEANER FOR PAPER MACHINERY.

APPLICATION FILED AUG.24. 1904.

Witnesses [nz/em/or; 7 M Matthew Mower F27 1 dis #fmwef UNITED STATESPATENT" OFFICE.

FELT-CLEANER FOR PAPER MACHINERY.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed August 24, 1904. Serial No. 221,915.

To aZZ whom it may concern:

Be it known that I. MATTHEW MILLER, a citizen of the United States,residing atUpper Darby, in the county of Delaware and State ofPennsylvania, have invented certain new and useful Improvements inFelt-Cleaners for Paper Machinery or the Like, of which the following isa specification.

My invention relates to a device for cleaning the felt or apron, usuallyknown as the felt, used in machinery for manufacturing paper. Heretoforeit has been necessary to remove the felt from the machine and submit itto a cleaning process for several hours to remove the particles of pulpand other objectionable matter which would collect in a few hours ofoperation of the machine, which method was very laborious and expensive.

The object of my invention is to provide means for cleaning the feltwithout removing it from the'machine.

A further object of my invention is to construct the cleaner in such amanner that the same may readily be brought into use during theoperation of the machine.

A still further object of my invention is to provide means of adjustingthe parts of the cleaner, together with various features ofconstruction, which will be hereinafter fully set forth and claimed.

Referring to the accompanying drawings, Figure 1 is a perspective viewof a portion of a paper-machine, showing my invent-ion attached thereto.Fig. 2 is an inverted plan view of the steam-pipe shown in Fig. 1. Fig.3 is an end view of Fig. 2.

In the drawings, A represents the side frames of the paper-machine, Band B compression-rolls, and C the felt, which is continuous in form,running throughout the machine and upon which the pulp is carriedthrough the different rolls to form the finished paper.

D represents a water-pipe held in brackets (Z on the frames A. This pipeis provided with a series of perforations on its under side and is usedto force jets of water upon the felt to soften it and prepare it for thecleaner.

The cleaner consists of the pipe E, held in brackets e in the frames A,and steam-supply pipe E, connected to the pipe E. The steamfpipe E isprovided with a slot E the length of which is equal to the width of thefelt G. The pipe is placed so that said slot is on the under side of thesame and said pipe located immediately over the felt, so that when steamis emitted from the pipe it will be directed toward the felt C. Toregulate the amount of steam that is emitted from the pipe E, 1 provideclamps F, by which the pipe may be contracted to less than its normaldiameter and the width of the slot varied by the adjustment of the wedgeG, held in a groove formed in one side of the clamp F. A space is leftbetween the ends of the clamp F, so that the clamp will not cover theslot E or interfere with the emission of the steam from the pipe. Theclamp is made of heavier metal than the pipe E, so that when the Wedgeis tightened the clamp will remain rigid and the pipe will yield andcause the slot in the pipe E to close.

The operation is as follows: The paper is cut so that it will not be fedthrough the machine upon the felt, which is running continuously. Wateris admitted to the pipe D, which sprays the felt and softens it. thentravels under the steam-pipe E, where it is subjected to the steam,which is presented in a continuous sheet throughout the entire width ofthe felt. The felt is thus thoroughly cleaned and prepared to again toreceive the paper.

If so desired, another wedge may be added to the other side of the ringF to give a more perfect adjustment. A set-screw, as shown in dottedlines, Fig. 3, may be used in place of the wedge to vary the width oftheslot E without departing from my invention.

Having thus described my invention, Iclaim and desire to secure byLetters Patent* 1. The method of cleaning felt in a papermachine, byspraying the said felt with water to soften it and then subjecting it toa fluid agent under pressure to remove the objectionable particles,substantially as described.

2. In combination with a machine in which felt is used, a perforatedpipe located adjacent to said felt, a water-supply pipe connected tosaid perforated pipe,- a pipe having a slot formed therein locatedadjacent to said felt, a

The felt v steam-supply pipe connected to said slotted steam-supply pipeconnected to said slotted 10 pipe and hearings to support saidabove-mentioned pipes, substantially as described.

3. In combination Witha machine in Which pipe and bearings to supportsaid above-mentioned pipes.

In testimony whereof I aifix my signature in felt is used, aperforatedpipe located adjacent presence of two Witnesses.

to said felt, a Water-supply pipe connected to i said perforated pipe, apipe having a slot formed therein located adjacent to said felt, meansfor varying the Width of said slot, a

MATTHEW MILLER.

Witnesses J. FREDK. J ENKINSON, M. R. CLEELAND.

